Why do you feel the PvE stuff is pushing you towards PvP? It's simply group play using the same dynamics as PvP, while not really being much like PvP (npc intelligence / improvisation for example)
and unless you got a different box and go to a different guildwars website than I do then it should have been fairly easy to discern that PvP is a large element of the game as a whole.
What you have is a game where you PvE until you peak at which point you continue to PvE for the fun / story / exploration whhatever or raise the stakes and prove your worth against real people for fame and glory

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in their words from the Game FAQ:
What kind of game is Guild Wars?
Guild Wars is a global online roleplaying game. Players can engage in cooperative group combat, in single player adventures, or in large head-to-head guild battles. Guild Wars is a mission-based game set in a stunning 3D fantasy world that offers excellent support for guilds. Because the team that is developing Guild Wars has had experience creating successful online game series such as Warcraft, StarCraft and Diablo, the members are familiar with the complex issues surrounding online games, and are creating a game that is both easy to learn and compelling to play long term, and yet does not require players to spend hundreds of hours slogging through the preparation just to get to the fun bits.
Is Guild Wars an MMORPG (Massively Multiplayer Online Role Playing Game)?
Guild Wars has some similarities to existing MMORPGs, but it also has some key differences. Like existing MMOs, Guild Wars is played entirely online in a secure hosted environment. Thousands of players inhabit the same virtual world. Players can meet new friends in gathering places like towns and outposts where they form parties and go questing with them. Unlike many MMOs, when players form a party and embark upon a quest in Guild Wars, they get their own private copy of the area where the quest takes place. This design eliminates some of the frustrating gameplay elements commonly associated with MMOs, such as spawn camping, kill stealing, and lines to complete a quest.
Guild Wars takes place in a large virtual world made up of many different zones, and players can walk from one end of the world to the other. In Guild Wars much of the tedium of traveling through the world has been eliminated. Players can instantly return to any safe area (town or outpost) that they have previously visited just by clicking on it in the world overview map.
Rather than labeling Guild Wars an MMORPG, we prefer to call it a CORPG (Competitive Online Role-Playing Game). Guild Wars was designed from the ground up to create the best possible competitive role-playing experience. Success in Guild Wars is always the result of player skill, not time spent playing or the size of one's guild. As characters progress, they acquire a diverse set of skills and items, enabling them to use new strategies in combat. Players can do battle in open arenas or compete in guild-vs-guild warfare or the international tournament. Engaging in combat is always the player's choice, however; there is no player-killing in cooperative areas of the world.
Finally, unlike existing MMOs, all characters in Guild Wars inhabit the same virtual world -- they are not divided onto different servers or shards -- so players can always team up with or compete against any other player in the world.
Can my character be killed by other players?
While Guild Wars has player vs. player combat, you are in control. You can choose to join in competitive missions and receive acclaim for winning against other gamers, or you can reap the rewards of solo adventures or cooperative team missions with an entirely different set of challenges.
Will the game have guild support? Will there be ladders and tournaments?
Guild Wars, as evidenced by its name, will have broad support for game guilds, including integrated support for worldwide tournaments and ladders, the ability for a guild to own and operate a guildhall, private guild forums, and more. You can find the current Guild Wars Ladder on this link.
Do you have to be in a guild to play Guild Wars?
Membership in a guild is not required to play Guild Wars. Although there are many positive aspects to belonging to a guild, players will have access to a wide variety of solo adventuring possibilities as well as team cooperative and competitive missions that will ensure you of many of those gaming sessions that run into the wee hours, no matter your playing style. Missions will come in all sizes and difficulties and can be joined individually, as part of a one-time team or as a member of a full-fledged guild.